In this study, the dual mediating role of internet addiction tendency and impulsivity on the relationship between experience of group bullying and bullying behavior among higher grade elementary school students was examined along with differences in path analysis between gender. For this purpose, this study analyzed data from data-providers that surveyed 887 4th, 5th, and 6th grade students in region a using scales that measured experience of group bullying, bullying behavior, internet addiction tendency, and impulsivity. A correlation analysis was conducted to examine the relationship between experience of group bullying, bullying behavior, internet addiction tendency, and impulsivity. The mediation model was verified through a structural equation model was used to verify whether internet addiction tendency and impulsivity mediated the relation between experience of group bullying and bullying behavior. Finally, a multi-group analysis was performed to examine whether there were any differences in the structural model path by gender. Results of the analysis showed that experience of group bullying has a direct effect on bullying behavior. Second, internet addiction tendency mediated the relationship between experience of group bullying and bullying behavior. Third, internet addiction tendency and impulsivity had a dual mediation effect when experience of group bullying affected bullying behavior. Finally, differences between groups by gender did not appear in all paths. Therefore, there were no gender differences. Discussions and implications are presented based on the results of this study.